package com.cn.lotary.base.validator;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import javax.validation.Constraint;
import javax.validation.Payload;

/**
 *正则验证，支持空字段
 * @author user192
 */
@Documented
@Constraint(validatedBy = PatternValidator.class)
@Target({ElementType.METHOD, ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
public @interface Pattern {

    String message() default "{validator.pattern}";

    String regexp();

    boolean nullable() default true;

    Class<?>[] groups() default {};

    Class<? extends Payload>[] payload() default {};
}
